rollup-plugin-ava-test-example

Injects JavaScript code from AVA unit test files into JSDoc examples

This rollup plugin does the following:

• Checks if the incoming file is a .js file (configurable via extensions setting)
• Checks if the file contains the JSDoc comment tag @example-test (configurable via jsdocTag setting)
• Checks if a file exists within the same directory of the input file, using the same name but with the suffix .unit.js (configurable via suffix setting)
• Parses the AVA unit test file using ava-to-json
• Maps the array of the parsed tests using the following nomenclature:

    @example <caption>{{ test-name }}</caption>
 
    ```js
    {{ test-code }}
    ```

• Joins the array using two new lines and replaces the found JSDoc tag @example-test in the given input with this computed string.

Setup

rollup.config.js

import AvaTestExample from 'rollup-plugin-ava-test-example'
 
const plugins = [
  AvaTestExample({
    // suffix: '.unit.js', // unit tests suffix
    // extensions: ['.js'], // file extensions to transform
    // ava2jsonOptions: {}, // ava2json options: https://github.com/devtin/ava-to-json
    // jsdocTag: '@example-test', // the jsdocTag to look for
  })
]
 
export default {
  input: 'src/my-function.js',
  output: [
    {
      file: `dist/my-function.js`,
      format: 'esm'
    },
  ],
  plugins
}

src/my-function.js (entry point)

/**
 * Adds a + b
 * @example-test
 */
export function myFunction (a, b) {
  return a + b
}

src/my-function.unit.js (AVA unit test)

import test from 'ava'
 
test(`Add a with b`, t => {
  t.is(add(1, 2), 3)
  t.not(add(2, 2), 5) // two and two NOT always makes a 5 ):
})

dist/my-function.unit.js (output)

/**
 * Adds a + b
 * @example <caption>Add a with b</caption>
 * 
 * ```js
 * t.is(add(1, 2), 3)
 * t.not(add(2, 2), 5) // two and two NOT always makes a 5 ):
 * ```
 */
export function myFunction (a, b) {
  return a + b
}

---

License

MIT

© 2020-present Martin Rafael Gonzalez [e-mail]